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Keywords = ultra-low stray inductances

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15 pages, 5494 KB  
Article
A Newly Designed Double-Sided Cooling Wire-Bondless Power Module with Silicon Carbide MOSFETs and Ultra-Low Stray Inductance
by Xiaoyun Rong, Ruizhu Wu and Phil Mawby
Electronics 2025, 14(8), 1520; https://doi.org/10.3390/electronics14081520 - 9 Apr 2025
Viewed by 1311
Abstract
This paper presents the design and characterisation of a novel double-sided cooling, wire-bondless half-bridge power module incorporating silver sintering technology and silicon carbide MOSFETs. Initially, the module was meticulously designed, optimised, and simulated using Ansys (Electronics Desktop 2021 R1) Q3D and Icepak to [...] Read more.
This paper presents the design and characterisation of a novel double-sided cooling, wire-bondless half-bridge power module incorporating silver sintering technology and silicon carbide MOSFETs. Initially, the module was meticulously designed, optimised, and simulated using Ansys (Electronics Desktop 2021 R1) Q3D and Icepak to assess its stray parameters and thermal performance, respectively. The module has a low simulated stray inductance of 4.7 nH, which would be even lower in a multi-chip version of the design. Additionally, the thermal performance of the double-sided power module is compared with the single-sided version, showing a 30 °C reduction in junction temperature. Following the design work, a double-sided cooled half-bridge module was successfully fabricated, which underwent double pulse analysis and single-phase inductive load testing. Die attachment within the module employs nanosilver paste, with the flexibility to adjust the length of the copper connector to meet diverse requirements. The design exhibits remarkable compactness, and comprehensive electrical testing affirms its suitability for practical applications. Full article
(This article belongs to the Section Power Electronics)
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